Mutual Screw & Supply

1/4-20 X 3/8" Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded | 316 Stainless Steel (400 / Pkg.)

1/4-20 X 3/8" Socket Cap Screws | Button Head Hex Socket Drive | Fully Threaded - Main image
$32.79 $51.24 In stock

These 1/4-20 x 3/8" socket cap screws are manufactured from 316 Stainless Steel, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 316 Stainless Steel
  • Head style: Button Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 1/4-20
  • Length: 3/8"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Button Head
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Grade: 316
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 1/4-20
  • Length: 3/8"
  • Threads per inch: 20
  • Measurement type: Inch
  • Pack quantity: 400 per package
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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Nicholas ★★★★★

I swapped out some standard bolts on my saltwater gear and these 316 stainless ones haven’t shown a hint of corrosion after months of spray. The button head gives a clean, low-profile look, and the hex socket makes tightening in tight spots a breeze.

Hannah A. ★★★★★

These hold up perfectly in my marine jig setup, and the hex drive fits a standard Allen wrench without stripping. The fully threaded design makes them easy to adjust for precise alignment.

Joseph ★★★★★

Used a handful of these in a saltwater marine jig and after a full season there's zero rust or pitting, which tells me the 316 stainless is the real deal. The button head profile sits nice and flush, and the hex socket grabs firmly without stripping.